<custom>
   <property type="list" key="debug" format="define" name="Enable debug" defaultvalue="1">
       <option internalval="DEBUG_ENABLED">Yes</option>
       <option internalval="NO_DEBUG">No</option>
       <description>
           <![CDATA[
           This option determines if debug should be enabled.
           ]]>
       </description>
   </property>
</custom>
